'Opening' in the Bible

And he said to him, Truly I say to you all, You will see heaven opening and God's angels going up and coming down on the Son of man.

Again they said to the blind man, What have you to say about him for opening your eyes? And he said, He is a prophet.

Then came the feast of the opening of the Temple in Jerusalem: it was winter;

So Jesus, deeply troubled in heart, came to the place of the dead. It was a hole in the rock, and a stone was over the opening.